Mentor



March 12, 1929. R. BREYER STOP MOTION FOR KNITTING MACHINES Filed Sept Z. 1926 6 Sheets-Sheet l ATTORNEY I March 12, 1929. R. B REY E R STOP MOTION FOR KNITTING MACHINES Filed Se t. 2. 1926 6 Sheets-Sheet 3 IYIIIIII' lM/ENTOR T BREYER March 12, 1929. R. BREYER V STOP MOTION FOR KNITTING MACHINES e Sheets-She et 5 Filed Sept. 2. 1926 ROBERT BREYER BY ()f 5 A TTORNEV March 112, 1929. R. BREYER 4 1,705,235

srorvuo'rmu FOR KNITTING mcamms Filed Sept. 2. 1926 s Sheets-Sheet 6 [WEI/TOR ROBERT BREYER 4 TTORA/EY Patented Mar. 12, 1929.

UNITED STATES PATENT OFFICE.

Bonner BBEYER, or MILWAUKEE,-WISCOLTSIN, assrenonfro PHOENIX HOSIERY COMPANY, or MILWAUKEE, Wisconsin, A eonronarron orwrsoonsm.

STOP MDTION FOR KNITTING MACHINES. I

"Application filed September 2, i926. SerialNo. 133,295.

The invention relates to a stop motion device of general application wherever it is desired to intercept the functioning of a ma chine of any kind whatsoever in accordance with some desired or preset sequence in the order of suspending the action of the con trolled machine. g 1 i In the device herein selected'for specific disclosure there is featured a stop motion designed for installation in'connection with a straight bar knitting machine, for lnstance a knitting machine of the type used in form'- ing the flat blank of a full 't'aslnonedladies stocking, and which machine is otherwise provideda-vith its conventional form of manually actuated stopping and starting mechanism.

In the knitting of a full fashioned stocking it is necessary for the machine to be stopped six or seven times during the course of-the knitting to permit theoperator to perform the operation of turning wclts. For instance, the machine must be stopped to change from one kind or size of yarn to an,- other as from cotton to silk, it must be stopped to make the proper motions which put the machine in condition for knitting the welt, the leg, the high heel, the heel, the loose courses, the ravelling courses and the like. I

Not only is it necessary to stop the machine at these different points but with different types and sizes of stockings the points in the progress of the knitting at which the several stops must be made differ with each character of stocking being knit.

' Attempts have been made heretofore to provide the machine with stop mechanism intended to be set to stop the machine automatically at the prefixed points in the knitting operation of the different types and sizes ofstockings in order among other things to attain uniformity in the knitting of the several parts of stockings of the same type or size. Such known stopping devices however have not proven satisfactory in practice especially in a large plant where numerous niachines are in operation knitting the same character of stocking, for each separate machine must be set independent of the setting ofthe other machines with resulting loss of labor and time for the machines must remain idle during the period necessaryto effect the resetting of the stop motion controlling the same. vFurther, this separate resetting of the controls for each machine permits the introduction of a factor of error which results in the stockings knit by one machine differing from those knit by another machine unless unusual, painstaking and practically impossible precautions are taken by the operator to set the controls for all'the machines exactly alike.

Another objection to knitting machine stops heretofore known and where the setting of the machine involves an adjustment of mechanicalparts, is that in operation the adj ustable stops are apt to be jarred or worn from any mathematically exact position in which they may be initially set with resulting inaccuracies oi the subsequentoperation even if the setting was initially correct. llilechanicallyadjustable control devices of the known types are not designed for micrometical adjustments and therefore do not lendthem selves readily to beingjset to stop the machine at any definite numbered course in theknifi ting machine and at best machines controlled thereby can be setto stop only approximately at the desired point and not exactly at the desired point. Such structures are further objectionable in that they do not facilitate a quick resettingof the machine to knit a different size or type of stocking and therefore limit the use of the controlled machine to. the knitting of one sizeand type of stocking until each of the controls have been individually reset to accommodate the .machine to knit a different character of stocking.

vAccordingly,the primary object of the invention is to provide a simplified form of stop motion which can be set with mathema ical exactness to stop the machine controlled thereby exactly at preset places in its sequence of operative movements and which sequence of stopping operationwill be independent of any wear in the control mechanism, to provide a control which can, be set exactly so that sequence of stops in the machine controlled thereby can be duplicated exactly in the knitting operation of other,

machines and to provide a stop motion which can be quickly changed from one to some other set of sequence of stops without necessity of making any mecl'ianical adjustment in the structural parts of either the stop motion or the machine controlled thereby.

Broadly, this phase of the invention is attained by providing a stop motion device preferably in'the form of an attachment to the machine which it controls'and which stop motion derives the power necessary to 'actu ate the same and is controlled in its timed action by the controlled machine, and by providing a replaceable card or perforated jacquard, one for each size or type of stocking or other article to be knit, operatively disposed in control of the power actuated stop mechanism to cause the'same to function in a timed sequence depending upon the character of the pattern on the particular card for the time being in control of the stop motion Another object of the invention is to provide a. simple form of stop mot-ion device for full fashioned stocking knitting machines which will defeat any attempt onthe part of the operator to vary the number-of courses knit in the several parts of the stocking as preset for any particular I ing, and at the same time to provide astop motion-device which will not interfere with the operators control of; the machine to ,Qficct a stopping thereof whenever desired but which czitra stopping will have no effect upon the order of automatic the machine is set. i

The invention herein disclosed features the use of a readily replaceable card or jacquard for controlling the stop motion and in this QnncCtion another object of the invention is to provide the replaceable card of a small size to facilitate the storing of a large munberof cards and the same time to provide extreme refinement in controlling opera.- 7

tions in situations where there is a. large number of cycles of knitting or other operative actions of the control machine at any one of whieh'the machine may be stopped.

In one aspect of the disclosure this is at.- .t 'inedby forming the jacquard of a relatively short length of paper, fibrous or other suitable composition which can be readily rolled into a compact space for storage and which may be perforated with apertures sufficiently large to accommodate the controlling needles coactin there-with without weaken.- ing the card. There is thus featured a stop motion. the controlling card of which is not easily n'uitilated while in use. Another ob.- ject of the: invention is to provide a acquard controlled stop motion which can be duplicated in its mechanical parts so that a multiplicity o f machines may be controlled from facsimiles of a master jaccpiard, and thus insure uniformity of products where a large number of knitting machines are sil'i'iultaneously producing the same size or type of stocking.

Still another object of the invention is to provide a stop motion for full fashioned stocking knitting machines which can be set for any particular type or size of stocking; which will insure the knitting of all of the C HFSB PIQS f r -t a par icul rcha t o s cking; whic will be au om cally sw ng out of operation when the complete number 7 of courses have been knit and which will tend such stockings is controlling type or size of stocksto in s for which to defeat attempts to knit any less number of courses long as a particular jacquard for the operation of the stop motion. I

Various other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawings and in part Will be more fully set forth in the following particular description of one form of device embodying the invention, and the invention also consists in certain new and novel features of construction and combination 01' parts hereinafter set forth and claimed.

In the accompanying drawings,

Fig. 1 is viewin front elevation of an attachment for a straight bar knitting machine constituting a preferred embodiment of the invention andshown in operative relation to the coacting elements of the controlled machine with the p-arts'in normal inoperative position;

F 2 is a view in side elevation of the device shown in Fig. 1 loo ng at the same from the right hand side of; this figure and with parts omitted; a

F is an enlarged View of some of the par s show in F g: 1 With the machine stop? ping member omittedand showingin dotted lines the'disposition of the parts while this member is beingshifted; 1

Fig. 4: is a horizontal sectional view taken on the broken lines of Fig, 1 looking downwardly as indicated by the arrows and with the jacquard power cams of the con? trolled machine omitted;

Fig. 5 is a vertical sectional view taken on the line 55 of Fig. 4: and showing the parts on. one side of the standard when looking in the direction indicated by the arrows;

big. 6 is an enlarged view mostly in clevation of the parts shown in Fig. 8 looking at the same'from the left of said figure and with parts of the roller and its shifting carriage broken away; i V

Fig. 7 is an enlarged view in side elevation of the upper part of the jacquardland associated mechanism in the position of the needles while the jacquard is being lied in step with the controlled machine;

Fig. 8 is a view largely in elevation of the ratchet feed as the corresponding parts are viewed from the line o*8 of Fig. 2 and lool'- ing in the direction indicated by the arrows and with the ratchet pawl shown in succeeding positions in full and dotted lines;

9 is a View similar to Fig. 8 showing the ratchet feed in position to retractthc units and ratchet;

Fi 10 adetail of the jacquard controlled stop for interceptingthe ratchet feed taken on the line 10--1O of Fig. 2 looking in the direction indicated by the arrows;

11 is a View corresponding to 10 showing the arrangement of the parts with the ratchet teed locked in inoperative position in the linal stop;

Fig. 12' is a detail view of the jacquard sprocket and coacting needles shown in position when the machineis stopped prior to the final stop; and

Fig. 13 is a 312m view of a controlling jacquard and laid out in a flat strip to show the jacquard pattern.

It is understood that the machine herein featured is designed to constitutean attacln ment to any of the several forms of straight bar knitting nachines now in general use and that in this trated only so much of such a machine as is necessary to snow the installation ofthevattachment herein featured.

In the drawingsthere is shown a straight bar knitting machine of the type used for knitting full fashioned stockings andwhich' machineincludes a support 14 torthe attachment and which support is any convenient or suitable part of the machine to be controlled, but it is obvious that the attachment may be provided with its own support independent of the machine. There is also'illustrated in Fig. 1 a portion of a starting rod 15 which is connected conventionally to a control switch or other instrumentality for starting and stopping the knitting machine. There is also disclosed one of the power shat'ts 16 which move in synchronism with the knitting mechanism one revolution for each course knit all as is Well known in structures of the type disclosed. The shatt is PIOVlQlQtl with a pair of cams 17 and 18 4i) secured thereto and operativ-ely connected to actuate the mechanism herein featured and for which reason the shaft will be referred to hereinafter as a cam shaft. designed to actuate the machine elements engaging the same once for each rotation of the shaft and the rise, on the cam 17 is about ninety degrees in advance ot the riseotthe' cam 18 which disposition was found necessary in the specific form of the invention illustrated. This disposition of an aperture aligned with each aperture m is necessary on the succeeding rotation of shaft 16 to remove aperture mpromptly from its position in line with needle 85 in order to insure the proper timing of the mechanism governed thcrcoy.

The attachment herein teatin'cd constitutes a complete article old nuunit'acturc and coinprises a standard 19 in the "term of a heavy thick steel plate. The bottom of the standard is defined by a foot 20 adapted to rest on the support 14 "ith one end defined by a depending too 21 and the other end defined by a heel 22 secured to the foot 20 by bolts 23 and con stituting a means for demountably clamping the attachment to the machine.

Pivotally mounted to the front side of the standard on a pivot pin 2% (Fig. 1) is a long lever 25 herein referred to as a machine stopdisclosure there has been illus- The cams are ping member. The upper end ol this member is litted between aparrot collars 26 and 2? seemed to the starting rod'15 so that the.

the starting rod may be otherwise actuated,

for instance, as by manual operation of the operator and that a reverse movement of the rod, from lett'to right,- willstart the operation of the knitting machine through mecha nism forming no part of the present disclog sure.

3 Positioned on the lower arm of the machine stopping member 25 is an L-shaped member 28 herelnaf'ter referred 'to as a reversible cam nose and which 1s secured to the member 25 by meansot a'pair of replaceable bolts 29 and 30. Alaterally projecting end of the cam nose is provided on its upper side with a beveled face 31 adapted to beengagcd bv a roller 32 hereinafter more -lfully described. lnplace of the arrangement shown in Fig. 1 where the stopping moven'ient or the rod 15 1s :tromthe position shown in full line to the right and into the position shown in dotted line, it is desirable under some conditions to. reverse the direction otstopping movement. For instance, it may be necessary to effect a stopping of the machine by a right to left movement of the control red, as from the dotted line into the full line" position shown in Fig. 1. In this case it is suggested that the cam nose be reversed to the opposite side of the roller 32 and for this purpose there is provided'a U-form of linkage for carrying the camnose. This linkageincludes an aper tured arm pivoted on a bolt 34: positioned on the opposite side of the roller trom the bolt 24. The lower end of the arm 33 is connected with the lower end of the member 25 by means of a connecting link 35. The arm 33 is pro: vided with a pair of apertures 36 and 37 f0r receivin respectively the bolts 29 and when the cam nose is mounted on this arm and with its beveled face the roller 32. I

The roller 32 is provided .withahub 38 (see Fig. 6) and rotatably mounted upon a stud shaft '39 carried by a. lever controlling slide'bar 40 mounted for vertical reciprocatory movement in. a guideway ll tormed'in one side of the standard 19. T he slide bar is normally n'iaintained in its elevated position by means of a long spring 12 the upper end of which is secured to a projection L8 secured to the rear face of the standard by screws 44 and hereinafterreferred tons a spring housing. The lower end or" the spring 42 is secured to a projecting end of a pivot pin 15 mounted in a pair of cars 4:6projeeting rearwardly from the slide bar 40 through an elongated slot 46 formed in the standard. The slide bar is'relOO 1 31 underlapping icy ciprocated by the rotary action ot' the cam 17 (Fig. 4) to which it is connected by a cam lever 47 pivoted by means of bolt 48 to one side of a heavy bracket L9 projecting rear wardly from the l mounted on the rear end of the arm 47 is roller 50 having a peripheral bearing engagement with the periphery of the cam 17. The

opposite or inner end of the lever 47 '(Fi 6 is connected by means of a depending link arm 51 the lower end of which is pivotally mounted between the. ears 46 on the pin a5.

7 For the purpose of providing adjustment between theroller 50 and the cam 17 fixed on the cam shaft the end of the arm 49 carrying the roller is provided with an arcuate slot 52 in which is mounted a roller shaft 58 carrying the roller 50 and which shaft is secured in adjusted position in the slot/by men s of a nut 5.4: bearing on a washer 55 in turn engaging the side of the arm. I

From this construction it is understood that the long spring 42 acts to maintain the roller 50 at all times in proper bearing; on-

gagement with the cam and that as the cam turns in synchronism with the operation of the knitting nachine the shoe bar a'O and with it the roller carried thereby is reciprocated vertically and this reciprocatory movement is continuous long as the crankshaft is turning or n other Words as long as the knitting machine is functioning.

The roller 32 is normally maintained so as to reciprocate idly out of operative engage ment with the cam nose 28 as shown in full lines in Fig. 6. For this purpose the nib 38 of the roller is provided with peripheral groove 56 engaged by the bifurcated forked end of a yoke arm 57 constitutingpart of a horizontally movable roller shifting carriage 58. The upper end of the yoke arm 57 secured by means of a pair of spacing bolts 59 to a plate 60 slidably mounted ,on a pin 61 projecting forwardly from the standard. The plate 60 is secured to a plunger ('32 passed through an aperture 63 in the standard and intruded into the open end of the spring housing 43. A spring 6% in the housing bears on its end of the plunger and tends normally to maintain the carriage as a whole and with it the roller 82 in the projected, full line position shown in F 6. 'lherarriagc is shifted inwardly in the direction indicated by the arrows in Fig. 6 by means of a small roller 65 journalled in a bracket 66 secured to the forward side of the slide plate it) and adapted to engage the beveled end 67 of a bell crank lever 68 ournalled on screw 70 threaded into the plate 60. Stop pins 71 and 72 projecting;- from the plate .60 limit the rocking movement of the lever. The bell crank lever is in turn rocked to and from its position to bring the beveled end in the path of movement of the reciprocatingroller by card controlled mechanism hereinafter described.

standard. Rotatably cally.v When the bell crank lever 68 is restored to its normal position out of the path of movement of the reciprocating roller shown in full lines in Fig. 6 the spring 64 will react to shift the roller 82 out ofthe plane containing the cam nose and the continued operation of the machine with the parts so disposed will be Without effect on the stopping member 25. j

It is a feature of this disclosure that the stopping ofthe machine is controlled by the pattern on a card or jacquard and which pattern is designed to cause an automatic stopping of the machine at preset timed intervals, the unit of time being the lapsed duration while the cam shaft 16 is making one complete cycle of its rotary movement. In the illustrated showing the jacquard j (Figs. 7 and 13) for the time being in control of the machine is an endless stripof paper provided along opposite edges with sprocket apertures 8 designed to engage edge sprocket teeth 78 in a step-by-step feed sprocket 7e loosely mounted on a stub shaft 75 projecting forwardly from the. standard as particular y shown in Fig. 4. This sprocket is driven from the cam shaft by means hereinafter described.

The jacquard is also looped about three guide rollers (Fig. 1) positioned below the ocket and acting to place the necessary tension on the paper jacquard and at the same time feature a ready and conveniently actuated means for insuring a quick replacement of the jacquard. The guide rollers include two rollers 76 and Z the of which are either fixed or liltftfltlfiil to be fixed in adjusted position. The rolle' F8 is mounted at the free end of arm 2 9' extending from the shaft which carries the roller 77 and designed by virtue of the weight of the arm and roller T8 to provide the necessary ten.- sion of the 'iacquard so as to maintain it in snug cup; .ient with the upper face of the sprocket during the actuation of the machine. It is apparent from the disclosure that there is featured an arrangement by means of which the jacquard on the machine may be readily removed and replaced by a similar jacquard provided with a difi'erent pattern simply by'lifting the arm 79 and then lifting the jacquard free of the sprocket teeth 73 This is done when it is desired to change the sequence of intervals between the stopping of the machine as would be the case where a i 1 L -iink S9 passes through the aperture.

different size or different type of stocking or other article is to be knit by the controlled machine. The shaft 81 carrying the roller 7'6 is slidably mounted in a slot 82 formed apertures punched through the paper strip.

In the specific form of jacquard illustrated in Fig. 13 the apertures are arranged in three lines hereinafter identified as the unit apertures a, multiple apertures m of which there are seven sets of each and final stop aperture f. v 7

The pattern forming apertures in the acquard are designed to have control needles pass into the same as these apertures are moved into registry with the needles and the needles are designed tobe heldin an elevated position by the imperforated part of the jacquard betweenv the apertures. "The needles of which three are shown in the illustration (Figs. 2, 3, 7 and 12) are mounted for vertical reciprocatory movement in a guide bar 8% projecting laterally from the standard and in alignment with the axls of the sprocket and spaced a short distance above the sprocket. 7

One of the needles 85 is adjust-ably secured in an extension foo-U86 overlapping the guide bar and formed at the free end of a horizontally extending arm 87 pivoted to the front of the standard on pin'88. The arm 87 is connected intermediate itsflength with a depending L-link 89, t-helower end of which is pivotally connected by means of pin 90 to the tripping lever68. Thepin is-in the plane of movement of t'he'i'nultiple apertures and is positioned over the same as they are advanced wi h the advance of the jacquard as shown in 7 and 12 From this construction it is appreciated that whenever one'of the apertures m is brought .belowthe' needle 85, the needle falls by virtue of its own weight and by virtue of the weight of the arm 8'? and "rte lower reduced end of the ncedleis permitted to pass into an annular slot 92 formed below the needle in the sprocket wheel as particularly shown in Fig. 12. a The falling of the needle through the aligned aperturem permits the shifting ofthe beveled end 67 of the lever intothe path of movement of the reciprocating roller as shown in dotted lines in 3 and thestopping member-251s shifted by power derived from the controlled ma chine as he 'einbefore describet yThe needle 85 and with'it anyof the other needles hereinafter described which may have been lowered into their associatedapertures are elevated out of its and their super tures on the next succeeding upward movement of the slide bar 40. This is attainedby ably mounted [cam 18.

means of an E-shaped needle elevating frame 93 (Figs. land 3) one'barv 94 of which is slidin aguide way 95 forme'din the front face of the standard. The other bar 96 is provided at its own lower end with a forwardly,extending lifting bar 97 Fi 12 positioned between the needle bar extension 86 and the guide bar 84L and so disposed that it works idly when the needles are elevated but engages the needle to lift the samefrom their depressed-position in the jacquard apertures whenever the needles are in their lowered position asnoted, for. instance, in Fig.12. The elevating frame 93 is ljiftedby thesliding bar 10 by means of a lifting tinge 98 forming an extension from the bracket 66 secured to the slide bar. iThe finger 98 underlaps a dependv ing pin 99 carried by an L-shaped lifting. bracket 100 secured to the front side of the lower end of the bar 9e. From this construe tion it is seen that the elevating frame is lifted andany depressed. needles are, lifted clear of the jacquard with eachnpward movement of the slide bar 4L0. Differently yexpressed the needles are lifted clear of the jac quard with eachrotation ofthe camshaft- 16.

The jacquard is advanced with a step-bystep motion in timed sequence with the actu- I ation of the controlled knitting machine and for'this purpose the sprocket 74: is advanced by a ratcl et feed; in turn advanced periodically by the turning of the cam18 and in step therewith. One end of the sprocket is provided with ai'elatively small diametered one way ratchet 101 and which ratchet isintende'd in thenormaloperation of thedevice toI-have a relatively slow step-by-step movement compared tothe time of rotation of the controlling cam ldand for which reason this ratchet directly controlling the sprocket will berefcrred to as a slow speed unit-"step I ratchet. Loosely mounted upon the shaftfih which carries the sprocket is a. multiplier 102 providedwith the same number of teeth.

as the ratchet 101 and which multiplier 102 isdesigned to'bc advanced one notch for each cycle-of rotary movementof the controlling The 'i'nultiplier 102 of slightly greater dian'ieter than the ratchet1-01 but one of the. \!'--shaped clearances or troughs between a pair of succeeding teeth as shown at 103 in Figs. 3 and Gis of greater depth than the others and this deep trough 103 corresponds in dimension to theclearance between the teeth of the ratchet 101 and is designed to be disposed opposite to the. troughs; betweenthe teeth forming the multiplier 102 so that a feed pawl 10 1 in itsnormal feeding engagement with the ratchetwill peri odically be advanced into the deeptrough 103; and at the same time into whichever-of the troughs which happen to be opposite the same so that in the next succeedingjadvance of the pawl both ratchets will'be advanced one step. From this constructionit is seen that the sprocket wheel is advanced one step for each complete rotation of the multiplier.

In theillustrated form of the invention there are twelve movements of the multiplier 102 and correspondingly twelve rotations of the controlling cam for each single advancing step of the sprocket 7 1- and of the jacquard carriedthereby while the needle is in its normal control of the stop motion. The pawl 10% is of the gravity 'typeand is pivoted on pin 105 projecting from a rocking arm 106 pivotally mounted on a bearing ring 108 secured to the front of the standard concentric of the shaft 75. The rocking arm is normally maintained in position resting on a verticallyadjustable stop 109 by means of a long spring 110. The stop 109 is in the form of a roller carried on an arm 111 (see Fig. 4) lapping the adjacent edge of the standard and forming a lateral extension from a ratchet feed slide112'mounted for vertical reciprocatory movement in a guide 7 way 113 formed in the rear side of the standard. The slide isconnected by means of an L-link 114 to a cam roller arm 115 pivoted at its forwardend by means of a pin 11-0 to the bracket 19 and on the side thereof opposite the cam arm 47. The free end of the arm 115 is provided witha cam roller 116 maintained by its weight in engagement with the periphery of. the power cam 18.

From this description it is seen that with each unit rotary movement of the cam shaft 16 the ratchet feeding pawl is advanced a distance to turn the multiplier 102 one step. AS this pawl is connectedto the constantly rotat-iiig'cam shaft it would mean that the pawl is recipi'ocated relative to its associated ratchet continuously as long as the controlled machine is in operation and that in the instant case the jacquard is advanced one step with each twelve rotations of the cam shaft. It therefore follows that the inanliine will be stopped automatically at each twelfth revolution of the cam shaft, or in multiples of twelve depending upon the spacing of the V apertures 7% along the length of the acquard.

It is apparent that by designing the. stop motion so that it will advance the jacquard after a multiple turn of the cam shaft rather than to have the jacquard advanced in step with the turning of the cam shaft, reduces the total length of the jacquard for in most cases the time delay between required stoppin of themachine is defined by two or three hundred rotations of the cam shaft. Tohave the jacquardadvance a step at a time with the rotation of the cam shaft would neces- V tiling the same.

sitate a jacquard too long for convenient storin of a lar e number of ac uards and I b V would ncrease the possibility of damaging the same both while in use and while han- It obvious however that tliei'ewill be times in the 111111113111 of an article where it ly in the guide bar 8 1 and the other is desiredto stop the machine at some point which does not happen to be an exactniultiple of the number of teeth in the unit ratchet wheel.- Suppose, for instance, that after the machine has been stopped at the pointindicated at a, Fig, 13, it is desired to knit say ninety-two courses before the machine is againstopped. This means that the previouslydescribed sprocket teed could be used for eight-four (seven times twelve) turnings'of the cam shaft and wliich' v ould ad vance thesprocket seven steps by the mechanisin previously outlined. This leaves eight more turns of the cam shaft before machine is to be stopped. This addendum nuinber of courses to be knit is attained by throwing out ofaction themultiplo feed mechanism and substituting a single stepratchet feed which will advance the sprocketin step i with the cam shaft until the requisite number teeth of the multiplier 102 and to dispose the pawl in an idle position relative to the unit ratchet 101. The positions of the apertures a in the jacquard-are so arranged that the step-bystep feeding of the jacquard feeding sprocket in synchronism withthe unitary turn of the cam shaft is started when the pawl is in engagement with the deep trough 103 anc. accordingly when it is in engagement with the sprocket ratchet.

The needle 11? which controls the setting of the pawl advance is in the forin of an iii-- vered U,'one leg 118 of which slides vertical 119 slid-es in a guiding bracket 120 proiectin V wardly from the standardf The low-erreduced end 121 of the leg 118 is designed to drop into the jacquard a ierturesn as they 'are advanced with the jacquard into opposition to the reciprocating needle 117. in the normal, multiple feeding operation of the device and asan iinperforated part of the jacquard is advanced beneath the needle it is kept fromfalling past. the jacquard and the sprocket feed operates as previously de scribed.

V The lowering of the pinend 121 into one of the apertures 24 permits a tripping head 122 carried by the leg 119 to be lowered from the position shown into thepath of the upper 311111123 of. annormally inactive retrhctile lever 1241.- This lever is pivoted intermediate the full line position shown in Fig. 8

In the normah multiple feed operation of the spr cket this retractile lever rests within and has no function except-as a stop for engaging against the adjacent side of the guide bar 84: as shown in dot and dash lines in Fig. 8 to limit the operative upward or clockwise movement of the arm 106. Atthis time it will be noted that the tripping head 122 is slightly above the arc of movement of the arm 123. i l lien the tripping head is lowered as shown in Fig. 9 by the descent of the pin 121 into an aperture u, the underside of the head is engaged by theupper curved side 12? of the lever and the upward swing of the arm 10 3 will cause the lever 12st to swing with its advanced arm 123 depressed from the position shown in Fig.8 into the position shown in Fig. 9. I

T he lever 12% is provided on one side with a laterally extending pin 128 which is designed to engage back of acoacting pin129 iii projecting laterally from the multiplier 102 and so disposed that when the rockingarm 106 is lowered under action of thespring 110 the multiplier 102 is retracted one step In other words the deep trough'105 in the ratchet wheel retreats back 'with the pawl therein so that on the next succeeding advancing s'trokeof the pawl it will be in en gagement with the next teeth of the sprocket ratchet 101. 7 From thisconstruction it will be understoodvanced one step with each actuationvof the pawl and this action will continue as long as the needle 117 controlling the head 122 is permitted to fall into aperture win the jacquard. In the illustrated instance the sprocket will be advanced eight times, one

for each of the apertures in the group b, be

fore the needle has been caused to drop into a properly located aperture on. way the machine is stopped at-the termination of ninety-two rotations of the cam shaft. Assumingthat the cam shaft turns once for each knitting course it is seen that the n'1a chine is stopped automatically at the tern'1i nation. of the ninety-second knitting course. It will be noted from Fig. 13 that there is an aperture u aligned with eachof the machine stoppingapertures m. This will mean that when the machine is stopped the head 122 will. be in the lowered position shown in Fig, Qand on the first elevation of the stop 109 deep trough 103 with the pawl as above described. This is obviously necessary in order to permit the first rotation of the cam shafhafter it has been previously stopped, to promptly advance the jacquard to remove the previously acting apertures from beneath the reciproeating needles.

1 For the purpose of stopoingthe feeding of the ratchet mechanism at t s end of the knitthat-the sprocket will be adretreats back ting operatioirand for locking the same in it s stopped position the jacquardis provided with a single stop aperture designed to be on red by the third of the set of needles illustrated. This needle 130 constitutes one leg of a lj n'iember slidably mounted in the guide bar 84, the other leg 181 of which is prov vided with :a leveled end When the needle drops into the stop aperture the end elevated by the jacquard'needle is curved.

concentrically of the ratchet carrying shaft 75. This cam face underlaps the free end of a long rod 138 which extendsacross the width of the sprocket and has its opposite end secured to the side of the pawl 10 1. The are designed so that the elevated cam face engages there-d and acts therethrough to lift the pawl from engagement with the teeth of its associated ratchet 102.v Even if the arm 100 carrying the pawl continues to rock it, will have no effect on the ratchet feed and thus no eiiiecton the jacquard for the pawl will be simply sweeping idly over the ratchets and this will continue until the machine is stopped by one of the apertures m or otherwise as by' manual control of the rod15. I i

The pawl is locked in its raised, inoperative position by the engagement. therewith of a hanging latch 1&0 pivoted on pin 1 11 to the outside of brackets 136. The latch 1 10' is;

provided on its inner edge witha notch 1 12 disposed to receive a pin 1 13 projecting through an opening in the bracket from the cam lever 13 1, i ith the pawl thus held in inoperat ve position, the jacquard 'may be turned idly, reset to again start the control of theknitting operation or another acquard may replace the one on the'nl'achine for a different size or style of stockii'lg or other article to he knit.

in r operation j and assumi sired to use the device he the purpose of controlling the incidental to the knitting of a full fashioned e; that it defeatus Y for requisite stops stocking and for which particular stoc'king a e jacquard has been prepared, the jacquard is inserted on the feed sprocket threaded through the machine is clearly shown in Fig. 1 and with the point 0 of the jacquard on top of the sprocket and in line with the needles. v I c it [is of course understood that theapertures f01I11111 the stop pattern on the jacquard have been designed and disposed :in

their spaced apart relation so that when the knitting operation has once started the ma-- chine will be stopped at the end of a certain hundred and eight courses have been knit at which time thetwo needles 85 and 11-7 will come into operative engagement respectively with the apertures m and a at the point indicated at a on Fig. 13'. The machine will be auton'iatically stopped as previously described. The operator will then turn the Welt following conventional practices and by shifting the control lever will again start the operation of the machine. Thel'irst more inent ofthe machine will cause the jacquard to be advanced one stcpand thencedlesjwill then be opposite the nil-perforated space marked (Z. The machine will then continue to operate, in the instant case, ad ancing the jacquard one step with the knit'xzing ott each twelve courses until the needle 117 drops into the first of the set of apertures after which for eight succeeding courses the jacquard will be advanced one step until seventy-eight courses when the machine is again stopped l y needles 85 and 117 dropping into apertures "in, a at the point 0. "When the machine 18 again started the knitting will continue for I two hundred and tWenty-rour courses as 1ncheated by the seventeen sprocket apertures between points 6 and g. It is understood that the operation is continued as previously dcs'c ribechthe machine stopping automaticalasthe needles fall into the succeeding apertures in the acquard and until the entire stocking has been completed at which time the engagement of the needle 130 in the stop aperture f will intercept any further feeding oi the machine until the knitting machine has been set to knit a neu stocking or set of stockings. i I

There is nothing in this arrangement which would act to prevent the operat r stopping the machine by manually shifting the control red as at present and any such intermediate stop 3 Will have no ei'lect on the automatic stopping the machine at the prescribed point during the progress of the knitting operation. However, when a par} ticular jacquard has been once set incontrol of the'automatic stopping motion it not possible for the operator to vary the-number of coin. automatic stoppings oi the machine; lone; as the jacquard is in control the requ number of courses defined. by the jacquard must be completed and in this ivay the num-' her of courses knit in the several portions oi? the stocking or other article is beyond the control or the operator.

tobe knit between the successive nism With the knitting operation of the machine and amember for stopping themachine, of a jacquard controlled mechanism "for causing said member to function successively at the termination of a predetermined number of courses knit by the machine in accordance with the jacquard pattern for the time being in control of said mechanism, said mechanism comprising a step-by-step jacquard advancing means actuated from said shaft, a acquard advanced by said means and provided with two parallel lines of pattern forming apertures, said jacquard advancing means comprisinga control ther For including a pin coacting With the apertures in one of said lines selectively to cause a single step ofadvance of the jacquard either at the terminat-ion or? a plurality of knitted courses or at the termination of a single knitted course, said jacquard controlledmechanism also com-' prising machine stopping means adapted, to be cooperatively connected With said stopping member and including); a pin coacting with the apertures in the other line for causing said machine stopping means to act on the stopping member and thus cause the machine to stop. i

2. In a knitting machine, the combination of a machine stopping membenfa power member, jacquard controlled means for connectmy; the power memberto the stopping mem her to stop themachine, said jacquard controlled means including a floating pin, mechanism for feeding an apertured jacquard with a step-by-step movement past the pin and in position to permit the pin to fall into an aper ture in the jacquard and thus connect the power memberto the stopping; member, a replaceable jacquard advanced by said niechanism and'provided With a line of pawl controlling pattern apertures, said feeding mech anisni'includmg a feed sprocket provided with. a feed ratchet, a step-by-step multiplier said mechanism including a jacquard advancing means operatively connected to be actuated from said povver member, a acquard advanced by said means and includingthree pattern forming means disposed transversely of the direction of advance of'the jacquard, said advancing means including a control governed by one of said three pattern forming means for regulating the rate of advance of said jacquard relative tothe action of the knitting machine, means governed by another of said three pattern forming means for causing said stopping member to function and means governed by the third of said three pattern forming means for disconnecting said jacquard advancing means from the power member. j

4. In a knitting machine, the combination of a machine stopping member, a power mem her acting in synchonism with the knitting operation of the machine, a jacquard controlled mechanism for causing said stopping member to function and including a jacquard feeding means actuated from said power member, ajacquard advanced by said feeding means, and provided withtwo parallel lines of pattern forming means, said feeding means including a control therefor governed by one of said lines of pattern'forming means for controlling the rate of advance of the jacquard relative to the "knitting'operation of the machine, and means governed by the other line of pattern forming means for causing the stopping member to function.

5. In a knitting machine, the combination with a machine stopping member and a power shaft turning a unit number of degrees for each course knit by the machine, of jacquard controlled mechanism for stopping the machine successively at the termination of predetermined numbers of courses knit by'the machine, said mechanism including a stepby-step jacquard advancing means actuated by said power shaft, a jacquard advanced by said means and provided with a line of apertures comprising a plurality of sets of aperand said set of apertures including a single aperture laterally offset from the last aperture in the line, mechanism for controlling the rate of feed of the advancing means including a pinadapted when the pin is in en'- gagement with the unperforated portion of the jacquard to cause a unit advance of said advancing means following a predetermined number of course knit and when in one of said line of apertures to cause a unit advance of said advancing means with each course knit and mechanism'including a pin adapted 7 when in the laterally offset aperture to cause the stopping member to function.

Signed at Milwaukee,- in the county of 'Milwaukee, and State of Wisconsin, this 30th day of August, A. D. 1926.

ROBERT BREYER. 

